JPH10244881A - Box lid structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve deposition strength, prevent the occurrence of a recess, and improve an external appearance by forming collapse preventing ribs on an outer member when deposition ribs erected on an inner member toward the outer member side are deposited. SOLUTION: Thin deposition ribs 131 , 132 erected along the vibration direction on the upper edge and lower edge of the connecting face of an inner member 5 are formed into the same width as that of the inner member 5, and the width can be set as required. Thin reinforcing ribs 171 , 172 kept in contact with the inner sides of the deposition ribs 171 , 172 are erected on the connecting face of an outer member 6 over nearly the whole area along the vibration direction of the outer member 6. When the inner member 5 and outer member 6 are combined and vibration-deposited, the reinforcing ribs 171 , 172 are arranged on the inside of the deposition ribs 131 , 132 , the reinforcing ribs 171 , 172 of the outer member 6 are kept in contact with the inner sides of the deposition ribs 131 , 132 of the inner member 5, and the deposition ribs 131 , 132 can be prevented from being collapsed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a box lid structure formed by connecting an inner member and an outer member by vibration welding.

[0002]

2. Description of the Related Art As is well known, a method of integrally forming an inner member and an outer member by vibration welding is known. This method is employed, for example, for forming a glove box or the like mounted on an instrument panel of an automobile. FIG. 11 shows a glove box 100, which shows a box body 101 and a lid 102 formed by vibration welding. As shown in FIGS. 12 and 13, the lid 102 includes an inner member 103 and an outer member 104, and the welding rib 105 provided on the inner member 103 is melted by vibration and pressure to form an outer member. 104. A screw 106 is attached to the lid 102 thus formed.
The hinge 107 is attached to the box main body 101 via the, and the lid 102 is attached to the box main body 101.

[0003]

In the case of a lid whose surface is greatly curved, the welding rib 105 falls down due to vibration, resulting in poor welding and poor appearance.

An object of the present invention is to solve the above-mentioned problems, and to provide a box lid structure capable of improving welding strength, preventing occurrence of sink marks, and improving appearance.

[0005]

According to the present invention, there is provided a box lid structure in which an outer member and an inner member having curved surfaces facing each other are integrally formed by vibration welding. And a rib for preventing the welding rib, which is provided upright toward the outer member side, for preventing the welding rib from falling at the time of welding, is formed on the outer member. Further, the present invention provides a box lid structure in which an outer member and an inner member formed of curved surfaces facing each other are integrally formed by vibration welding, wherein a concave portion is formed on the outer surface side of the inner member, and the inner surface of the inner member is formed. Side to the outer member side to form a convex part,
A welding rib is provided at the tip of the projection toward the outer member. Further, the present invention provides a box lid structure in which an outer member and an inner member formed of curved surfaces facing each other are integrally formed by vibration welding.
A fastening boss is provided on the outer member, and a welding rib protrudes from an end of the fastening boss toward the inner member.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIG. 1 to FIG. 4, reference numeral 1 denotes an instrument panel main body. On the passenger seat side of the instrument panel main body 1, another box portion 3 is provided on the upper side of a normal glove box 2. I have. The box portion 3 is provided with a lid 4 having a curved surface that protrudes greatly toward the outside. This lid 4 is shown in FIG.
As shown in the figure, the inner member 5 and the outer member 6 are formed with semi-circular curved surfaces facing each other so as to protrude outwardly, that is, toward the outer member side,
The inner member 5 and the outer member 6 are integrally formed by vibration welding.

The inner member 5 is provided with a mounting seat 8 for the lock device 7 and a mounting portion 10 for the hinge 9. The inner member 5 is mounted on the mounting seat 8 and the mounting portion 10 by screws 11 and 12, respectively. ing. As shown in FIG. 5 to FIG. 7, welding ribs 13 ₁ and 13 ₂ having a small thickness are provided on the upper edge and the lower edge along the upper edge and the lower edge, respectively, on the joint surface 5 a of the inner member 5. It is erected along the lateral direction, that is, along the vibration direction D. This welding rib 1
Although 3 ₁ and 13 ₂ are formed to have the same width as the width L of the inner member 5, the width can be set as required. Also, a plurality of recesses 14 and 15 are formed on the outer surface of the inner member 5 in the vertical and horizontal directions, respectively, so that the inner surface of the inner member 5 projects toward the outer member 6. On the joining surface 5a between 13 ₁ and 13 ₂ ,
A plurality of convex portions 14 ₁ , 14 ₂ ,
14 ₃ , 14 ₄ , 14 ₅ , 14 ₆ , 15 ₁ , 15 ₂ are formed, and these convex portions 14 ₁ , 14 ₂ , 14 ₃ , 14 ₄ , 1
4 ₅ 14 _6, 15 _1, 15 ₂ of the front end, respectively appropriate intervals in the vertical and horizontal directions are projected a large number of bonding ribs 16 toward the outer member 6 side. This welding rib 16
Is thin and has a constant width M along the lateral direction, that is, along the vibration direction D. The width M and the number of the welding ribs 16 can be set as required.

On the other hand, as shown in FIGS. 8 and 9, welding ribs 13 ₁ and 13 ₂ are provided on the joining surface 6a of the outer member 6.
Thin reinforcing ribs 17 ₁ , 17 ₂ abutting on the inside of the
Are set up substantially all over the lateral direction of the outer member 6, that is, along the vibration direction D. A fastening boss 18 is provided upright at a predetermined location on the joint surface 6a of the outer member 6, and the fastening boss 18 is formed on the mounting portion 10 of the inner member 5 as shown in FIG. Screw hole 19
A screw hole 20 is formed in correspondence with. A welding rib 21 is provided upright on the peripheral edge of the fastening boss 18 toward the inner member 5.

According to the above configuration, when the inner member 5 and the outer member 6 are combined and subjected to vibration welding, the reinforcing ribs 17 ₁ , 17 of the outer member 6 are provided inside the welding ribs 13 ₁ , 13 ₂ of the inner member 5. Combine so that ₂ is placed. Thus, the inner member 5 and the outer member 6
In the direction D shown in FIG. 2, vibration is applied and pressure is applied to melt the welding ribs 13 ₁ and 13 ₂ on the inner member 5 side, the many welding ribs 16, and the welding rib 21 on the outer member 6 side. Then, the inner member 5 and the outer member 6 are welded to each other. At this time, the welding rib 13 of the inner member 5 is used.
_1, 13 ₂ of the reinforcing ribs 17 ₁ of the outer member 6 to the inside,
17 ₂ abuts to prevent the welding ribs 13 ₁ , 13 ₂ from falling down. Then, the hinge 9 is assembled by screwing the hinge screw 12 into the screw hole 19 formed in the attachment portion 10 of the inner member 5 and screwing it into the screw hole 20. It is assembled to the box part 3 of the instrument panel main body 1 via the hinge 9.

According to the above embodiment, the inner member 5
The reinforcing ribs 17 ₁ , 17 ₂ for preventing the welding ribs 13 ₁ , 13 _{2 from} falling down during welding are provided on the outer member 6. 6, the welding area of the welding ribs 13 ₁ and 13 ₂ is enlarged, and the welding strength is improved. Since the reinforcing ribs (fall-preventing ribs) 17 ₁ and 17 ₂ are low in height and thin, the outer member 6 does not have sink marks, so that the appearance can be improved. Further, the inner side to protrude the outer member 6 side protruding portion 14 ₁ of the inner member 5 to form a recess on the outer surface side of the inner member 5, 14 _2, 14 _3, 14 _4, 1
4 ₅ , 14 ₆ , 15 ₁ , and 15 ₂ are formed.
4 _1, 14 _2, 14 _3, 14 _4, 14 _5, 14 _6, 15
_1, 15 ₂ of the front end, is provided with the welding rib 16 toward the outer member 6 side, to improve the rigidity of the inner member 5, and, since it requires only a low height of the welding rib 16, sink Prevention can be achieved. Further, a fastening boss 18 is provided on the outer member 6, and a welding rib 21 is protruded from the tip of the fastening boss 18 toward the inner member 5, so that the rigidity of the fastening portion is improved and the welding strength is improved. Can be achieved. Also, the welding rib 13 on the inner member 5 side
_1, 13 ₂ and the welding rib 16, the welding rib 21 of the outer member 6, so welding the inner member 5 and the outer member 6 cooperate with each other, it is possible to obtain a sufficient strength.

The welding rib 1 on the inner member 5 side
3 _1, 13 ₂ and the welding rib 16, the welding rib 21 of the outer member 6, can be combined as appropriate, if necessary, of course. Further, the welding ribs 13 ₁ , 13 ₂ on the inner member 5 side and the welding rib 1
6. The width and length of the welding rib 21 of the outer member 6 may be appropriately selected as needed.

[0013]

As described above, according to the box lid structure of the present invention, the following effects can be obtained. 2. The box lid structure according to claim 1, wherein the outer member and the inner member, each having a curved surface facing each other, are integrally formed by vibration welding, and provided on the inner member so as to be erected toward the outer member. Since the fall prevention rib for preventing the welding rib from falling down during welding is formed on the outer member, the welding area is enlarged and the welding strength is improved. Since there is no sink on the outer member,
The appearance can be improved. 3. The box lid structure according to claim 2, wherein the outer member and the inner member each having a curved surface opposed to each other are integrally formed by vibration welding, and a concave portion is formed on an outer surface of the inner member to form an inner surface of the inner member. Is projected to the outer member side to form a convex portion, and a welding rib is provided at the tip of the convex portion toward the outer member side, so that the rigidity of the inner member can be improved and sink marks can be prevented. . 4. The box lid structure according to claim 3, wherein the outer member and the inner member each having a curved surface facing each other are integrally formed by vibration welding, wherein a fastening boss is provided on the outer member, and a tip of the fastening boss is provided at the tip of the fastening boss. Since the welding rib protrudes toward the inner member, the rigidity of the fastening portion can be improved, and the welding strength can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an instrument panel using a box lid according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the box lid according to the embodiment of the present invention.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 1;

FIG. 4 is an enlarged sectional view taken along line BB of FIG. 1;

FIG. 5 is a front view showing the inside of the inner member of the box lid of FIG. 2;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is an enlarged sectional view taken along line CC of FIG. 5;

FIG. 8 is a front view showing the outside of the outer member of the box lid of FIG. 2;

FIG. 9 is an enlarged sectional view taken along line DD of FIG. 8;

FIG. 10 is an enlarged sectional view showing a fastening boss part of FIG. 9;

FIG. 11 is a perspective view showing a conventional box lid.

FIG. 12 is an enlarged sectional view taken along line AA of FIG. 11;

FIG. 13 is an enlarged sectional view taken along line BB of FIG. 11;

[Explanation of symbols]

1 the instrument panel main body 2 glove box 3 box 4 lid 5 inner member 6 outer member 13 _1, 13 ₂ the bonding ribs 14 _1, 14 _2, 14 _3, 14 _4, 14 _5, 14 ₆
Convex portions 15 ₁ , 15 ₂ Convex portions 16 Welding ribs 17 ₁ , 17 ₂ Reinforcing ribs (ribs for preventing falling) 18 Tightening boss

Claims (3)

[Claims] In a box lid structure in which an outer member and an inner member formed by curved surfaces facing each other are integrally formed by vibration welding, the outer member and the inner member are provided upright on the inner member toward the outer member. A lid structure for a box, wherein a fall prevention rib for preventing the welding rib from falling down during welding is formed on the outer member. 2. A box lid structure in which an outer member and an inner member each having a curved surface facing each other are integrally formed by vibration welding, a concave portion is formed on an outer surface side of the inner member, and an inner surface of the inner member is formed. A box-shaped lid structure in which a projection is formed by projecting the projection toward the outer member, and a welding rib is provided at a tip of the projection toward the outer member. 3. A box lid structure in which an outer member and an inner member each having a curved surface facing each other are integrally formed by vibration welding, a fastening boss is provided on the outer member, and a tip of the fastening boss is provided at the tip of the fastening boss. A box lid structure in which welding ribs protrude toward the inner member side.